Charging the HDR400 is similar to charging a mobile phone.
We recommend that you fully charge the HDR400 before using
it for the first time. A full charge takes about 3 hours, and will provide
up to 20 hours of use. If you need to use the hearing instruments
before the charging cycle is complete, the operation time can be
shorter than usual.
The light green USB cable supplied with the hearing aid has
a micro-USB connector on one side which will fit into the bottom
slot of the hearing aid to charge it.
Charging the
rechargeable
battery
(HDR400 only)
On the other end of the cable is the standard USB connector and
this will plug into the supplied AC power plug connector, a computer
USB port or any other standard USB power source used for charging
other electronic devices.
NB: Please only use the supplied USB cable and adaptor
to charge the HDR400. Other unauthorised cables or adaptors
may damage the instrument.
When the USB cable is connected to a power source, a green
LED will glow near the standard USB end of the cable. If the USB
cable end glows red, please do not charge the hearing aid, contact
Hearing Direct.
When the cable is connected correctly to the HDR400 and charging
begins, the charging indicator light on the HDR400 will glow blue.
It is normal to see this blue light flickering, and to occasionally hear
soft clicks during the charging process.
When the instrument is fully charged the blue LED indicator will turn
green and will be ready to turn on and use.
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